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76990293 = 3213961543
BaseRepresentation
bin1001001011011…
…00011101010101
312100212111211100
410211230131111
5124202142133
611350100313
71623256332
oct445543525
9170774740
1076990293
113a505a46
122194a699
1312c484b3
14a321989
156b5be13
hex496c755

76990293 has 12 divisors (see below), whose sum is σ = 112010080. Its totient is φ = 50956776.

The previous prime is 76990271. The next prime is 76990327. The reversal of 76990293 is 39209967.

It is not a de Polignac number, because 76990293 - 28 = 76990037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76990213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29521 + ... + 32022.

Almost surely, 276990293 is an apocalyptic number.

It is an amenable number.

76990293 is a deficient number, since it is larger than the sum of its proper divisors (35019787).

76990293 is a wasteful number, since it uses less digits than its factorization.

76990293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61688 (or 61685 counting only the distinct ones).

The product of its (nonzero) digits is 183708, while the sum is 45.

The square root of 76990293 is about 8774.4112623013. The cubic root of 76990293 is about 425.4142084041.

The spelling of 76990293 in words is "seventy-six million, nine hundred ninety thousand, two hundred ninety-three".

Divisors: 1 3 9 139 417 1251 61543 184629 553887 8554477 25663431 76990293